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;;; SPDX-License-Identifier: GPL-3.0-or-later
;;; Copyright © 2025 Hilton Chain <hako@ultrarare.space>
(define-module (nonguix transformations)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (guix channels)
#:use-module (guix diagnostics)
#:use-module (guix gexp)
#:use-module (guix i18n)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module (guix build-system trivial)
#:use-module (gnu system)
#:use-module (nongnu system linux-initrd)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services xorg)
#:use-module (nongnu services nvidia)
#:use-module (gnu packages base)
#:use-module (gnu packages package-management)
#:use-module (nongnu packages linux)
#:use-module (nongnu packages nvidia)
#:export (nonguix-transformation-guix
nonguix-transformation-linux
nonguix-transformation-nvidia)
#:re-export (replace-mesa))
(define* (nonguix-transformation-guix #:key (substitutes? #t)
(channel? #t)
(guix-source? #f))
"Return a procedure that transforms an operating system, setting up Nonguix
signing key for the Guix daemon.
Additionally, SUBSTITUTES? (default: #t) sets up the substitute server,
CHANNEL? (default: #t) adds Nonguix channel specification into
'/etc/guix/channels.scm' and GUIX-SOURCE? (default: #f) builds Nonguix channel
into the default Guix.
FIXME: GUIX-SOURCE? is disabled by default due to performance issue."
(define %nonguix-signing-key
(plain-file "nonguix.pub" "
(public-key
(ecc
(curve Ed25519)
(q #C1FD53E5D4CE971933EC50C9F307AE2171A2D3B52C804642A7A35F84F3A4EA98#)))"))
(define %nonguix-channel
(channel
(name 'nonguix)
(url "https://gitlab.com/nonguix/nonguix")
;; Enable signature verification:
(introduction
(make-channel-introduction
"897c1a470da759236cc11798f4e0a5f7d4d59fbc"
(openpgp-fingerprint
"2A39 3FFF 68F4 EF7A 3D29 12AF 6F51 20A0 22FB B2D5")))))
(lambda (os)
(operating-system
(inherit os)
(services
(modify-services (operating-system-user-services os)
(guix-service-type
config => (guix-configuration
(inherit config)
(channels
(let ((configured-channels
(guix-configuration-channels config)))
(if channel?
(cons %nonguix-channel
(or configured-channels %default-channels))
configured-channels)))
(guix
(if guix-source?
(guix-for-channels channels)
(guix-configuration-guix config)))
(authorized-keys
(cons %nonguix-signing-key
(guix-configuration-authorized-keys config)))
(substitute-urls
(delete-duplicates
`(,@(guix-configuration-substitute-urls config)
,@(if substitutes?
'("https://substitutes.nonguix.org")
'())))))))))))
(define* (nonguix-transformation-linux #:key (linux linux)
(firmware (list linux-firmware))
(initrd microcode-initrd))
"Return a procedure that transforms an operating system, setting up
LINUX (default: linux) kernel, with FIRMWARE (default: (list linux-firmware))
and INITRD (default: microcode-initrd)."
(lambda (os)
(operating-system
(inherit os)
(kernel linux)
(firmware
(delete-duplicates
(append firmware
(operating-system-firmware os))))
(initrd initrd))))
(define* (nonguix-transformation-nvidia #:key (driver nvda)
(open-source-kernel-module? #f)
(kernel-mode-setting? #t)
(configure-xorg? #f)
(remove-nvenc-restriction? #f)
;; Deprecated.
(s0ix-power-management? #f))
"Return a procedure that transforms an operating system, setting up DRIVER
(default: nvda) for NVIDIA GPU.
OPEN-SOURCE-KERNEL-MODULE? (default: #f) is supported since Turing and required
since Blackwell.
KERNEL-MODE-SETTING? (default: #t) is required for Wayland and rootless Xorg
support.
CONFIGURE-XORG? (default: #f) is required for Xorg display managers. It accepts
a display manager service type, or #t when using '%desktop-services'.
REMOVE-NVENC-RESTRICTION? (default: #f) applies patches from
<https://github.com/keylase/nvidia-patch>."
(define* (remove-restriction #:key nvenc nvfbc)
(lambda (pkg)
(if (and (or nvenc nvfbc)
(target-x86-64?))
(package
(inherit pkg)
(build-system trivial-build-system)
(arguments
(list
#:builder
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(define (patch-lib patch)
(lambda (lib)
(when patch
(invoke #$(file-append sed "/bin/sed")
"--in-place" patch lib))))
(copy-recursively #$pkg #$output)
(with-directory-excursion (in-vicinity #$output "lib")
(for-each
(patch-lib #$nvenc)
(find-files "." "libnvidia-encode\\.so"))
(for-each
(patch-lib #$nvfbc)
(find-files "." "libnvidia-fbc\\.so")))))))
(native-inputs '())
(inputs '())
(propagated-inputs '()))
pkg)))
(define %driver
(or (assoc-ref
`((,nvda-beta
. ,((if remove-nvenc-restriction?
(remove-restriction
#:nvenc "s/\\xe8\\x51\\x21\\xfe\\xff\\x41\\x89\\xc6\\x85\\xc0/\\xe8\\x51\\x21\\xfe\\xff\\x29\\xc0\\x41\\x89\\xc6/g"
#:nvfbc "s/\\x85\\xc0\\x0f\\x85\\xd4\\x00\\x00\\x00\\x48/\\x85\\xc0\\x90\\x90\\x90\\x90\\x90\\x90\\x48/g")
identity)
driver))
(,nvda-590
. ,((if remove-nvenc-restriction?
(remove-restriction
#:nvenc "s/\\xe8\\x41\\x2e\\xfe\\xff\\x41\\x89\\xc6\\x85\\xc0/\\xe8\\x41\\x2e\\xfe\\xff\\x29\\xc0\\x41\\x89\\xc6/g"
#:nvfbc "s/\\x85\\xc0\\x0f\\x85\\xd4\\x00\\x00\\x00\\x48/\\x85\\xc0\\x90\\x90\\x90\\x90\\x90\\x90\\x48/g")
identity)
driver))
(,nvda-580
. ,((if remove-nvenc-restriction?
(remove-restriction
#:nvenc "s/\\xe8\\x81\\x2e\\xfe\\xff\\x41\\x89\\xc6\\x85\\xc0/\\xe8\\x81\\x2e\\xfe\\xff\\x29\\xc0\\x41\\x89\\xc6/g"
#:nvfbc "s/\\x85\\xc0\\x0f\\x85\\xd4\\x00\\x00\\x00\\x48/\\x85\\xc0\\x90\\x90\\x90\\x90\\x90\\x90\\x48/g")
identity)
driver))
(,nvda-470
. ,((if remove-nvenc-restriction?
(remove-restriction
#:nvenc "s/\\xe8\\x55\\x1a\\xff\\xff\\x85\\xc0\\x41\\x89\\xc4/\\xe8\\x55\\x1a\\xff\\xff\\x29\\xc0\\x41\\x89\\xc4/g"
#:nvfbc "s/\\x83\\xfe\\x01\\x73\\x08\\x48/\\x83\\xfe\\x00\\x72\\x08\\x48/g")
identity)
driver))
(,nvda-390
. ,((if remove-nvenc-restriction?
(remove-restriction
#:nvenc "s/\\x85\\xC0\\x89\\xC5\\x75\\x18/\\x29\\xC0\\x89\\xC5\\x90\\x90/g"
#:nvfbc #f)
identity)
driver)))
driver)
(leave (G_ "'~a': no driver configuration available for '~a'~%")
"nonguix-transformation-nvidia"
driver)))
(define %firmware
(assoc-ref
`((,nvda-beta . ,nvidia-firmware-beta)
(,nvda-590 . ,nvidia-firmware-590)
(,nvda-580 . ,nvidia-firmware-580)
(,nvda-470 . ,nvidia-firmware-470))
driver))
(define %module
(assoc-ref
`((,nvda-beta . ,(if open-source-kernel-module?
nvidia-module-open-beta
nvidia-module-beta))
(,nvda-590 . ,(if open-source-kernel-module?
nvidia-module-open-590
nvidia-module-590))
(,nvda-580 . ,(if open-source-kernel-module?
nvidia-module-open-580
nvidia-module-580))
(,nvda-470 . ,nvidia-module-470)
(,nvda-390 . ,nvidia-module-390))
driver))
(define %modprobe
(assoc-ref
`((,nvda-beta . ,nvidia-modprobe-beta)
(,nvda-590 . ,nvidia-modprobe-590)
(,nvda-580 . ,nvidia-modprobe-580)
(,nvda-470 . ,nvidia-modprobe-470)
(,nvda-390 . ,nvidia-modprobe-390))
driver))
(define %settings
(and configure-xorg?
(assoc-ref
`((,nvda-beta . ,nvidia-settings-beta)
(,nvda-590 . ,nvidia-settings-590)
(,nvda-580 . ,nvidia-settings-580)
(,nvda-470 . ,nvidia-settings-470)
(,nvda-390 . ,nvidia-settings-390))
driver)))
(define %xorg-extension
(and=> configure-xorg?
(match-lambda
(#t
(set-xorg-configuration
(xorg-configuration
(modules (list %driver)))))
(display-manager
(set-xorg-configuration
(xorg-configuration
(modules (list %driver)))
display-manager)))))
(lambda (os)
(operating-system
(inherit os)
(kernel-arguments
`("modprobe.blacklist=nouveau"
"modprobe.blacklist=nova_core,nova_drm"
,@(if s0ix-power-management?
(begin
;; 2026-03
(warning
(G_ "'~a': argument '~a' is deprecated, the transformation \
won't add kernel arguments other than the minimum necessary in the future.~%")
"nonguix-transformation-nvidia"
"#:s0ix-power-management?")
'("mem_sleep_default=s2idle"
"nvidia.NVreg_EnableS0ixPowerManagement=1"))
'())
,(if kernel-mode-setting?
"nvidia_drm.modeset=1"
"nvidia_drm.modeset=0")
,@(operating-system-user-kernel-arguments os)))
(packages
(replace-mesa (operating-system-packages os) #:driver %driver))
(services
(replace-mesa
`(,(service nvidia-service-type
(nvidia-configuration
(driver %driver)
(firmware %firmware)
(module %module)
(modprobe %modprobe)
(settings %settings)))
,@(if configure-xorg?
(list %xorg-extension)
'())
,@(operating-system-user-services os))
#:driver %driver)))))
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